阅读说明：本技术 渗透型灭火药剂组合物 (Permeable fire extinguishing agent composition ) 是由 秦修莲 于 2020-02-10 设计创作，主要内容包括：本发明涉及一种渗透型灭火药剂组合物,其包含：金属碳酸盐；尿素；降凝剂；氟类表面活性剂；两性(amphoteric)表面活性剂；以及水。上述渗透型灭火药剂组合物不仅对作为一般火灾的A类火灾和作为油类火灾的B类火灾,还对作为厨房火灾的K类火灾也具有优异的灭火力。(The present invention relates to a penetrating fire extinguishing agent composition comprising: a metal carbonate; urea; a pour point depressant; a fluorine-based surfactant; amphoteric (amphoteric) surfactants; and water. The permeable fire extinguishing agent composition has excellent fire extinguishing power not only against a group A fire, which is a general fire, and a group B fire, which is an oil fire, but also against a group K fire, which is a kitchen fire.)

1. A permeable fire extinguishing agent composition is characterized in that,

comprises the following steps:

5-15 weight percent of metal carbonate;

1-10 weight percent of urea;

3-10 weight percent of pour point depressant;

0.03-5 wt% of a fluorine-based surfactant;

0.5-10 weight percent of an amphoteric surfactant; and

50-90 wt% of water.

2. The osmotic fire extinguishing agent composition of claim 1,

the surface tension of the above composition is less than 33mN/m,

the hydrogen ion concentration at a temperature of 19.5 ℃ to 20.5 ℃ is 6 to 9.

3. The osmotic fire extinguishing agent composition of claim 1,

the above composition does not undergo solution separation at a temperature of 0 ℃ to 50 ℃.

4. The osmotic fire extinguishing agent composition of claim 1,

the amphoteric surfactant is selected from lauramidopropyl betaine, cocamidopropyl betaine, Sedum lactylate betaine, cocodimethylcarboxymethylbetaine, lauryldimethylcarboxymethylbetaine, lauryldiethylcarboxyethylbetaine, hexadecyldimethylcarboxymethylbetaine, lauryl-bis- (2-hydroxyethyl) carboxymethylbetaine, oleyldimethylgamma-carboxypropylbetaine, lauryl-bis- (2-hydroxypropyl) carboxyethylbetaine, cocamide 3-hydroxypropyl betaine disodium, laurylamide 3-hydroxypropyl betaine phosphate, laurylamido glycerylamido phosphate betaine, laurylamido carboxyamido disodium 3-hydroxypropyl betaine phosphate, sodium cocoyl sarcosinate, laurylamido betaine phosphate, laurylamido disodium hydroxy-3-hydroxypropyl betaine phosphate, laurylamido-N-hydroxy-methyl betaine, laurylamido-methyl betaine, lauryl dimethyl-carboxymethyl betaine, lauryl dimethyl-methyl betaine, lauryl dimethyl-2-methyl betaine, lauryl-dimethyl-carboxymethyl betaine, lauryl-dimethyl-hydroxyethyl betaine, lauryl-dimethyl-3-hydroxypropyl betaine, lauryl betaine, myrimido-glyceryl betaine, lauryl betaine, sodium cocoamphoacetate, disodium cocoamphoacetate, ammonium cocoyl sarcosinate, sodium cocoamphopropionate, cocoamidodimethylpropyl sulfobetaine, stearyl-amidodimethylpropyl sulfobetaine, lauramide-bis- (2-hydroxyethyl) propyl sulfobetaine, monosodium cocoamidopropyl phosphonate, and monosodium lauramide myristamidopropyl phosphonate.

5. The osmotic fire extinguishing agent composition of claim 1,

the fluorine-containing surfactant is a perfluoroalkyl group-containing hydrocarbon surfactant.

6. The osmotic fire extinguishing agent composition of claim 1,

the fluorine-based surfactant is one or more selected from the group consisting of perfluoroalkyl betaine, perfluoroalkyl carboxybetaine, perfluoroalkyl sulfobetaine, perfluoroalkyl carboxylate, perfluoroalkyl sulfate, perfluoroalkyl phosphate, perfluoroalkyl amine salt, perfluoroalkyl triethylammonium salt, perfluoroalkyl quaternary ammonium salt, perfluoroalkyl polyoxyethylene and perfluoroalkyl ester.

7. The osmotic fire extinguishing agent composition of claim 1,

the metal carbonate is one or more selected from the group consisting of potassium bicarbonate, potassium carbonate, sodium carbonate, magnesium carbonate, cobalt carbonate and sodium bicarbonate.

8. The osmotic fire extinguishing agent composition of claim 1,

the pour point depressant is ethylene glycol, propylene glycol, polyethylene glycol or glycerol.

9. The osmotic fire extinguishing agent composition of claim 1,

the composition also comprises 0.03-2 weight percent of additive,

the additive is one or more selected from the group consisting of methanol, ethanol, isopropanol, methyl ethyl ketone, formamide, methyl formamide, acetamide, methyl acetamide, dimethyl acetamide, methyl cellosolve, ethyl cellosolve, butyl cellosolve, diethylene glycol monobutyl ether, diethylene glycol monoethyl ether, ethylene carbonate, propylene carbonate, dimethyl sulfoxide, and acetonitrile.

10. The osmotic fire extinguishing agent composition of claim 1,

the composition also comprises 0.01-2 weight percent of pH regulator,

the pH regulator is one or more selected from the group consisting of citric acid, malonic acid, maleic acid, gluconic acid, tannic acid, oxalic acid, tartaric acid, gluconic acid, malic acid, lactic acid, acetic acid, pectinic acid, fumaric acid, succinic acid, adipic acid, and salicylic acid.

11. A permeable fire extinguishing agent is characterized in that,

an osmotic fire extinguishing agent composition of any of claims 1-10.

Technical Field

The invention relates to a permeable fire extinguishing agent composition.

Background

This application claims priority to korean patent application No. 10-2019-0015772 filed on 11.2.2019 by the korean patent office, the entire contents of which are disclosed in the literature and incorporated herein by reference.

With the development and evolution of human civilization, petrochemicals are used in large quantities for convenience and comfort of life, and fires are liable to occur due to life in a population-dense manner. In addition, once a fire occurs, it becomes a large-scale fire, causing serious damage to lives and property. However, it is impossible to exchange all combustible materials used in daily life for noncombustible materials or flame retardant materials.

Therefore, all countries stipulate the deployment of fire extinguishers in dangerous facilities or storage sites for dangerous substances by law, but some fire extinguishers have problems of insufficient fire extinguishing power and environmental destruction due to toxicity.

Natural substances release 5600kcal per 1kg burned, while petrochemical substances generate 12200kcal of high heat per 1kg burned. And three minutes after the fire occurs, the fire cannot be extinguished by lowering the ignition point using water in the fire engine, and the smoke particles also cause damage to people and livestock.

The fire extinguishing agent is solid, liquid or gas substance with fire extinguishing performance, wherein the liquid fire extinguishing agent includes foam type fire extinguishing agent, acid-base type fire extinguishing agent, liquid enhancing type fire extinguishing agent or penetrating type fire extinguishing agent.

According to the standards approved for fire extinguishing agents, it is essential that, among liquid fire extinguishing agents, the reinforcing liquid type fire extinguishing agent is an aqueous solution containing an alkali metal salt as a main component, and exhibits an alkaline reaction, a hydrogen ion concentration (pH) of not more than 5.5 and an acidity of-20 ℃. The reinforcing liquid type fire extinguishing agent is suitable for a class a fire as a general fire and a class B fire as an oil type fire. Since the reinforcing liquid type fire extinguishing agent is a strongly alkaline solution having a hydrogen ion concentration (pH) of 11 to 12, there are problems of corrosion of the container before and after use and secondary damage and stability due to the chemical liquid during use.

In recent years, enhancement liquid type fire extinguishing agent products have been developed which reduce secondary damage or inhibit corrosion of containers by lowering the hydrogen ion concentration. Korean laid-open patent No. 10-2004-0078078 (published 2004, 09/08) discloses a neutral-group-enhancing liquid-type fire extinguishing agent for reducing the concentration of hydrogen ions, but it has a problem that precipitation occurs during storage or a separation phenomenon of the liquid medicine occurs.

Among liquid fire extinguishing agents, the penetrating type fire extinguishing agent is an agent used in combination with water to increase the penetrating power, dispersing power, emulsifying power, etc. of water. The permeable fire extinguishing agent has the advantage of being more environment-friendly than the enhanced liquid type fire extinguishing agent because the concentration of hydrogen ions of the permeable fire extinguishing agent is neutral. In fact, most of the penetration type fire extinguishing agent products are used for the class a fire as a general fire, but they are not excellent in fire extinguishing effect when applied to the class B fire as an oil type fire. In addition, the penetration type fire extinguishing agent has a problem that the fire extinguishing effect is not good for K-type fires which are kitchen fires.

Disclosure of Invention

Problems to be solved by the invention

In order to solve the above-mentioned problems, the present invention is directed to provide a penetrating type fire extinguishing agent composition which is not only used for the class a fire and the class B fire but also used for the class K fire, and thus has excellent fire extinguishing performance and is environmentally friendly.

However, the present invention is not limited to the above technical problems, and other technical problems will be clearly understood from the following description by those of ordinary skill in the art to which the present invention pertains.

Means for solving the problems

One embodiment of the present invention provides an osmotic fire extinguishing agent composition comprising: 5-15 weight percent of metal carbonate; 1-10 weight percent of urea; 3-10 weight percent of pour point depressant; 0.03-5 wt% of a fluorine-based surfactant; 0.5 to 10 weight percent of an amphoteric (amphoteric) surfactant; and 50-90 wt% of water.

In an embodiment of the present invention, the osmotic fire-extinguishing agent composition may include: 5-10.9 weight percent of metal carbonate; 1-10 weight percent of urea; 3-10 weight percent of pour point depressant; 0.03-5 wt% of a fluorine-based surfactant; 0.5 to 10 weight percent of an amphoteric (amphoteric) surfactant; and 76.7-90 wt% of water.

In one embodiment of the present invention, the surface tension of the composition may be less than 33 mN/m.

In one embodiment of the present invention, the hydrogen ion concentration (pH) of the above composition at a temperature of 19.5 ℃ to 20.5 ℃ may be 6 to 9.

In one embodiment of the present invention, the composition may not undergo solution separation at a temperature of 0 ℃ to 50 ℃.

In one embodiment of the present invention, the amphoteric surfactant may be selected from the group consisting of lauramidopropyl betaine, cocamidopropyl betaine, meadowfoam seed amidopropyl betaine, coco dimethyl carboxymethyl betaine, lauryl dimethyl carboxyethyl betaine, cetyl dimethyl carboxymethyl betaine, lauryl-bis- (2-hydroxyethyl) carboxymethyl betaine, oleyl dimethyl γ -carboxypropyl betaine, lauryl-bis- (2-hydroxypropyl) -carboxyethyl betaine, disodium cocoamide 3-hydroxypropyl betaine, lauric myristamide 3-hydroxypropyl betaine, lauric myristamido glyceryl phosphate betaine, lauric myristoamido carboxy disodium 3-hydroxypropyl betaine, lauric myristoyl amido carboxy sodium 3-hydroxypropyl betaine, sodium lauryl betaine, and mixtures thereof, Sodium cocoyl sarcosinate, sodium cocoamphoacetate, disodium cocoamphoacetate, ammonium cocoyl sarcosinate, sodium cocoamphopropionate, cocoamidodimethylpropyl sulfobetaine, stearoyl-amidodimethylpropyl sulfobetaine, lauramide-bis- (2-hydroxyethyl) propyl sulfobetaine, monosodium cocoamidopropyl phosphonate, and monosodium lauramido myristamidopropyl phosphonate.

In one embodiment of the present invention, the fluorine-based surfactant may be a perfluoroalkyl group-containing hydrocarbon surfactant.

In one embodiment of the present invention, the fluorine-based surfactant may be one or more selected from the group consisting of perfluoroalkyl betaines, perfluoroalkyl carboxybetaines, perfluoroalkyl sulfobetaines, perfluoroalkyl carboxylates, perfluoroalkyl sulfates, perfluoroalkyl phosphates, perfluoroalkyl amine salts, perfluoroalkyl triethylammonium salts, perfluoroalkyl quaternary ammonium salts, perfluoroalkyl polyoxyethylenes, and perfluoroalkyl esters.

In one embodiment of the present invention, the metal carbonate may be one or more selected from the group consisting of potassium bicarbonate, potassium carbonate, sodium carbonate, magnesium carbonate, cobalt carbonate, and sodium bicarbonate.

In one embodiment of the present invention, the pour point depressant may be ethylene glycol, propylene glycol, polyethylene glycol, or glycerol.

In an embodiment of the present invention, the composition may further include 0.03 to 2 weight percent of an additive.

In one embodiment of the present invention, the additive may be one or more selected from the group consisting of methanol, ethanol, isopropanol, methyl ethyl ketone, formamide, methyl formamide, acetamide, methyl acetamide, dimethyl acetamide, methyl cellosolve, ethyl cellosolve, butyl cellosolve, diethylene glycol monobutyl ether, diethylene glycol monoethyl ether, ethylene carbonate, propylene carbonate, dimethyl sulfoxide, and acetonitrile.

In an embodiment of the present invention, the composition may further include 0.01 to 2 weight percent of a pH adjuster.

In one embodiment of the present invention, the pH adjuster may be one or more selected from the group consisting of citric acid, malonic acid, maleic acid, gluconic acid, tannic acid, oxalic acid, tartaric acid, gluconic acid, malic acid, lactic acid, acetic acid, pectinic acid, fumaric acid, succinic acid, adipic acid, and salicylic acid.

One embodiment of the present invention provides an osmotic fire extinguishing agent, which is prepared from the osmotic fire extinguishing agent composition.

Effects of the invention

The permeable fire extinguishing agent composition of the present invention has excellent fire extinguishing power not only against a group a fire, which is a general fire, and a group B fire, which is an oil fire, but also against a group K fire, which is a kitchen fire.

Further, when the permeable fire extinguishing chemical composition of the present invention is dropped into soil or water, it is easily decomposed by microorganisms and converted into nitrogen, phosphoric acid, and potassium, and thus it does not adversely affect the soil environment and can be used as a nutrient for plants. The permeable fire extinguishing agent composition has the advantage of environmental protection, so the permeable fire extinguishing agent composition is greatly different from a reinforced liquid type fire extinguishing agent or a powder fire extinguishing agent which causes serious damage to the environment.

Also, the osmotic fire extinguishing agent composition according to the present invention is an osmotic agent, which can be used in a mixture with water, and thus can have all the advantages of a water fire extinguishing agent. That is, the cooling effect of lowering the ignition temperature is excellent.

Also, since hydrogen is generated and oxygen is absorbed to block ionization of oxygen required for ignition, there is an advantage in that it has an excellent oxygen blocking effect for the flame source.

Also, there is an advantage in that oxygen of the flame source is blocked by continuously generating bubbles resistant to flames.

Detailed Description

Hereinafter, the present invention will be described in more detail.

The term "and/or" as used herein is intended to mean including at least one of the structural elements listed thereafter and thereafter.

The following specific structural and functional descriptions are merely illustrative for describing embodiments according to the inventive concept, which can be embodied in various forms and should not be construed as being limited to the embodiments described in the specification.

Since embodiments according to the inventive concept can be varied in many ways and can take many forms, specific embodiments will be described in detail in this specification. However, it is not intended to limit the embodiments according to the inventive concept to the particular forms disclosed, but to include all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless the context clearly dictates otherwise, singular expressions include plural expressions.

Unless otherwise defined, all terms, including technical or scientific terms, used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

In the present specification, the "penetrating fire extinguishing agent" refers to an agent that is used by being mixed with water to increase the penetrating power, dispersing power, emulsifying power, and the like of water. Also, "osmotic aqueous solution" refers to an aqueous solution in which an osmotic fire extinguishing agent is mixed with water.

In the present specification, the term "general fire" refers to a fire in which general combustible materials such as wood, fiber, paper, rubber, and plastics are burned to leave ash. Fire extinguishers for general fires are adapted to fires as indicated by "a".

In the present specification, "oil type fire (class B fire)" means a fire in which oils such as flammable liquids, petroleum greases, tars, oils, oily coatings, solvents, paints, alcohols, and flammable gases are burned without leaving ash. Fire extinguisher adaptive fires for oil fires are indicated by "B".

In the present specification, "kitchen fire (fire of class K)" means a fire occurring in a cooker for processing animal and vegetable oil in a kitchen. Fire extinguisher adaptive fire for kitchen fires is denoted by "K".

One embodiment of the present invention provides an osmotic fire extinguishing agent composition comprising: 5-15 weight percent of metal carbonate; 1-10 weight percent of urea; 3-10 weight percent of pour point depressant; 0.03-5 wt% of a fluorine-based surfactant; 0.5-10 weight percent of an amphoteric surfactant; and 50-90 wt% of water.

In an embodiment of the present invention, the osmotic fire-extinguishing agent composition may include: 5-10.9 weight percent of metal carbonate; 1-10 weight percent of urea; 3-10 weight percent of pour point depressant; 0.03-5 wt% of a fluorine-based surfactant; 0.5 to 10 weight percent of an amphoteric (amphoteric) surfactant; and 76.7-90 wt% of water.

In one embodiment of the present invention, the surface tension of the composition may be less than 33 mN/m.

In one embodiment of the present invention, the hydrogen ion concentration (pH) of the above composition at a temperature of 19.5 ℃ to 20.5 ℃ may be 6 to 9, more specifically, the pH may be 7.5 to 8.5. Even without a pH adjuster, the pH of the composition of the invention may range from 6 to 9, specifically from 7.5 to 8.5.

The pH regulator may be selected from citric acid (C)₆H₈O₇) Malonic acid (malonic acid: c₃H₄O₄) Maleic acid (maleic acid: c₄H₄O₄) Gluconic acid (gluconic acid: c₆H₁₂O₇) Tannic acid (tannic acid: c₇₆H₅₂O₄₆) Oxalic acid (oxalic acid: c₂H₂O₄) Tartaric acid (taric acid: c₄H₆O₆) Gluconic acid (gluconic acid: c₆H₁₂O₇) Malic acid (malic acid: c₄H₆O₅) Lactic acid (lactic acid: c₃H₆O₃) Acetic acid (acetic acid: c₂H₄O₂) Fumaric acid (fumaric acid: c₄H₄O₄) Succinic acid (succinic acid: c₄H₆O₄) Adipic acid (adipic acid: c₆H₁₀O₄) And salicylic acid (salicylic acid: c₇H₆O₃) One or more of the group consisting of.

In one embodiment of the present invention, the composition may not undergo solution separation at a temperature of 0 ℃ to 50 ℃. Also, the osmotic fire extinguishing agent composition of the present invention can be mixed with water in an osmotic aqueous solution without solution separation at a temperature of 0 to 50 ℃. If solution separation occurs, it is not suitable for use as an osmotic fire extinguishing agent. The "solution separation phenomenon" includes, among others, precipitation phenomenon, turbidity phenomenon, and the like.

In an embodiment of the present invention, the metal carbonate may be included in an amount of 5 to 15 wt% based on the total weight of the osmotic fire extinguishing agent composition. If the content of the metal carbonate is less than 5 weight percent, there is a problem that precipitates are generated in the penetrating type fire extinguishing agent composition, and if the content exceeds 15 weight percent, the alkalinity is strong, which does not meet the standard as the penetrating type fire extinguishing agent having a pH of 6 to 9, and thus the fire extinguishing is poor. The metal carbonate of the present invention has a content of 5 to 15 wt%, and thus has an advantage of maintaining a pH value within a range of 6 to 9 without a pH adjusting agent.

The metal carbonate is not particularly limited as long as it is a carbonate bonded to a metal, and specifically, it may be selected from the group consisting of potassium bicarbonate (KHCO)₃) Potassium carbonate (potassium carbonate: k₂CO₃) Sodium carbonate (sodium carbonate: na (Na)₂CO₃) Magnesium carbonate (magnesium carbonate: MgCO₃) Cobalt carbonate (cobalt carbonate: CoCO₃) And sodium bicarbonate (sodium hydrogen carbonate: NaHCO 2₃) More specifically, it may be potassium bicarbonate.

The metal carbonate is decomposed by heat in a fire to generate hydrogen and carbon dioxide, and the generated carbon dioxide is combined with oxygen to produce an ionization effect of reducing the concentration of oxygen around the fire source. Further, the foam of the amphoteric surfactant is formed, thereby providing a strong fire extinguishing effect and a suffocation effect. When phosphate or sulfate other than carbonate is used, a solution separation phenomenon such as formation of precipitates may occur, and thus the fire extinguishing function may be lowered, and the pH value may be out of the range of 6 to 9, so that the precipitate may not be suitable for use as a precipitated fire extinguishing agent.

In one embodiment of the present invention, the above urea may be included in an amount of 1 to 10 weight percent, based on the total weight of the osmotic fire extinguishing agent composition. Urea may act as a stabilizer and freeze point lowering aid. The urea helps cool below the ignition point. If ammonia is used instead of urea, an unpleasant odor is generated, which is not preferable, and the residue may cause environmental problems. If the content of the urea is less than 1 weight percent as described above, it is difficult to obtain a sufficient stabilizer or coolant effect, thus causing a solution separation phenomenon and a decrease in freezing point depressing effect. Also, if the content of urea is more than 10 weight%, miscibility with other components is reduced, and foamability and stability of foam are deteriorated.

In one embodiment of the present invention, the above-mentioned pour point depressant may be included in an amount of 3 to 10 weight percent, based on the total weight of the osmotic fire extinguishing agent composition. If the content of the above-mentioned pour point depressant is less than the above-mentioned 3 weight percent, the effect of lowering the freezing point is lowered, resulting in freezing of the fire extinguishing agent, and thus it is not suitable. Further, if the content of the pour point depressant exceeds 10% by weight, the pour point depressant itself burns as an organic substance, thereby causing a change in physical properties and an increase in flammability, eventually leading to a decrease in fire extinguishing ability. According to an embodiment of the present invention, the pour point depressant can be ethylene glycol HO (CH)₂)₂OH), propylene glycol (propylene glycol: c₃H₈O₂) Polyethylene glycol (polyethylene glycol: h- [ OCH₂CH₂]n-OH) or glycerol (glycerol: c₃H₅O₃)。

In an embodiment of the present invention, the fluorine-based surfactant may be included in an amount of 0.03 to 5 wt% based on the total weight of the osmotic fire extinguishing agent composition. If the content of the fluorine-based surfactant is less than 0.03% by weight, the effect of reducing the surface tension is not significant, and if it exceeds 5% by weight, the effect of reducing the surface tension does not increase with the increase of the content, and there is a problem that the surfactant does not dissolve and suspended matter is generated, and the price is high, and therefore, it is not economically preferable.

In one embodiment of the present invention, the fluorine-containing surfactant may be a perfluoroalkyl group-containing hydrocarbon surfactant, more specifically, a perfluoroalkyl group-containing hydrocarbon surfactant, and still more specifically, a perfluoroalkyl group-containing amphoteric hydrocarbon surfactant. For example, there may be mentioned: a zwitterionic fluorosurfactant containing a perfluoroalkyl betaine, a perfluoroalkyl carboxybetaine, or a perfluoroalkyl sulfobetaine; an anionic fluorosurfactant containing a perfluoroalkyl carboxylate, perfluoroalkyl sulfate, perfluoroalkyl phosphate, or perfluoroalkyl phosphate; a cationic fluorosurfactant containing a perfluoroalkyl amine salt, a perfluoroalkyl triethylammonium salt, or a perfluoroalkyl quaternary ammonium salt; and nonionic fluorine surfactants such as perfluoroalkyl polyoxyethylene or perfluoroalkyl ester, and the like, which may be used alone or in combination of two or more.

The above fluorine-based surfactant plays a role of improving the spreadability of an aqueous solution by reducing the surface tension of the aqueous solution, and performs a function of preserving the foamed foam to prevent it from being broken in the liquid fuel. That is, it serves to improve fire extinguishing ability by preventing bubbles from bursting in flames.

The fluorine-based surfactant reduces the surface tension of the fire extinguishing agent composition to less than 33mN/m, so that the fire extinguishing agent composition easily penetrates deep into a burning substance such as a deep fire, thereby performing a function that can effectively extinguish the deep fire.

In one embodiment of the present invention, the amphoteric surfactant may be included in an amount of 0.5 to 10 wt%, based on the total weight of the osmotic fire extinguishing agent composition. If the content of the amphoteric surfactant is less than 0.5% by weight, the effect of reducing the surface tension is not significant, and if the content is 10% by weight or more, the surfactant is not dissolved and suspended matters are generated.

The amphoteric surfactant may be non-fluorine amphoteric surfactant containing more than one C₈～C₂₂An aliphatic substituent, which may comprise an anionic water-solubilizing group such as a carboxyl group, a sulfonate group or a sulfate group. For example, it may be selected from the group consisting of lauramidopropyl betaine (lauramidopropyl betaine), cocamidopropyl betaine (cocamidopropyl betaine), meadowfoam amidopropyl betaine (meadowfoam amidopropyl betaine), coco dimethyl carboxymethyl betaine (coco dimethyl carboxymethyl betaine), lauryl dimethyl carboxymethyl betaine (lauryldimethyl carboxymethyl betaine), lauryl dimethyl carboxy dimethyl betaine (lauryldimethyl betaine)Ethyl betaine (lauryl dimethyl betaine), cetyl dimethyl carboxymethyl betaine (cetyl dimethyl betaine), lauryl bis- (2-hydroxyethyl) carboxymethyl betaine (lauryl bis- (2-hydroxypropyl) carboxymethyl betaine), oleyl dimethyl gamma-carboxypropyl betaine (oleyl dimethyl gamma-carboxypropyl betaine), lauryl bis- (2-hydroxypropyl) carboxyethyl betaine (lauryl bis- (2-hydroxypropyl) -carboxyethyl betaine), cocamide 3-hydroxypropyl betaine disodium (cocamido disodium 3-hydroxyproyl phosphate), laurylamine 3-hydroxypropyl betaine (laurylamine 3-hydroxypropyl) betaine (laurylamine 3-hydroxypropyl betaine), laurylamine 3-hydroxypropyl betaine (laurylamine betaine) phosphate) and laurylamine betaine (laurylamine betaine) 3-hydroxypropyl betaine (laurylamine betaine) phosphate) and laurylamine betaine (myristyl betaine) 3-hydroxypropyl betaine) phosphate (laurylamine betaine) phosphate) Lauric acid myristic acid amido carboxy disodium 3-hydroxypropyl betaine phosphate (lauric acid amido calcium phosphate 3-hydroxypropyl betaine), sodium cocoyl sarcosinate (sodium cocoyl sarcosinate), sodium cocoyl amphoacetate (sodium cocoyl sarcosinate), disodium cocoyl sarcosinate (sodium cocoyl sarcosinate), sodium cocoamphopropionate (sodium cocoamidodimethylpropylsultaine), cocoamidodimethylpropylsultaine (cocoamidodimethylpropylsultaine), stearoyl-amidodimethylpropylsultaine (stearyl-amidodimethylpropylsultaine), laurylamide-bis- (2-hydroxyethyl) propylsultaine (laurylamimido-bis- (2-hydroxyethoxy) propylsultaine), cocoamidopropylphosphonic acid monosodium (cocoamidopropylphosphonium phosphate), and laurylamimidopropylphosphonic acid monosodium (laurylamimidopropylphosphonium phosphate). In particular, lauramidopropyl betaine is more effective.

The amphoteric surfactant functions as a foaming agent and has an effect of reducing surface tension, and the fluorine-based surfactant functions to prevent bubbles formed from the amphoteric surfactant and bubbles formed from the metal carbonate from being broken. Therefore, the amphoteric surfactant, particularly the non-fluorine type amphoteric surfactant and the fluorine type surfactant, generate an effect of improving fire extinguishing power by interaction, and thus can extinguish not only a type a fire and a type B fire, which are standards of fire extinguishing performance of the penetration type fire extinguishing agent, but also a type K fire. Therefore, if only either one of the amphoteric surfactant and the fluorine-based surfactant is contained, the fire extinguishing performance is lowered, and thus the fire extinguishing performance in the class B fire and the class K fire may be lowered. Further, if the fluorine-containing surfactant is not contained, but the amphoteric surfactant and the cationic surfactant are contained, the fire extinguishing performance is also deteriorated, and thus the fire extinguishing performance in the class B fire and the class K fire may be deteriorated.

The water has its own fire extinguishing function and also has a function as a solvent for dissolving other components. The water is not particularly limited and includes purified water and/or unpurified water. The water may be selected from, for example, tap water, ground water, distilled water and/or purified water, etc. Such water may be included in an amount of 50 to 90 weight percent based on the total weight of the fire extinguishing agent composition of the present invention.

In an embodiment of the present invention, the composition may further include 0.03 to 2 weight percent of an additive. The additive may be an organic solvent, and more specifically, may be an organic solvent selected from methanol (CH)₃OH), ethanol (ethanol: c₂H₆O), isopropanol (isopropyl alcohol: c₃H₈O), methyl ethyl ketone (methylethylketone: c₄H₈O), formamide (formamide: CH (CH)₃NO), methyl formamide (methyl formamide: c₂H₅NO), acetamide (acetamide: c₂H₅NO), N-methylacetamide (N-methylacetamide: c₃H₇NO), dimethylacetamide (dimethylaceamide: c₄H₉NO), methyl cellosolve (methyl cellosolve: c₃H₈O₂) Ethyl cellosolve (ethyl cellosolve: c₄H₁₀O₂) Butyl cellosolve (butyl cellosolve: c₆H₁₄O₂) Diethylene glycol monobutyl ether (diethylene glycol monobutyl ether: c₈H₁₈O₃) Diethylene glycol monoethyl ether (diethylene glycol monoethyl ether: c₆H₁₄O₃) Ethylene carbonate (Ethylene carbonate: c₃H₄O₃) Propylene carbonate (propylene carbonate: c₄H₆O₃) Dimethyl sulfoxide (dimethyl sulfoxide: c₂H₆OS) and acetonitrile (acetonitrile: c₂H₃N) of the group. More specifically, the additive may include ethanol, methyl ethyl ketone, and isopropyl alcohol.

The organic solvent additive functions to improve the function of reducing surface tension and to make the fluorine-based surfactant sufficiently miscible in the composition, thereby contributing to prevention of burst of bubbles due to flame and improving the function of extinguishing fire.

Also, the osmotic fire extinguishing agent according to the present invention may further include an additive in addition to the above components. These additives can improve fire extinguishing performance and dispersion stability. Also, the bubble layer is prevented from being broken or flowing by strengthening the cohesion between the bubbles, so that the fire extinguishing performance can be improved.

The permeable fire extinguishing agent composition according to the present invention is applicable to a fire of class K (kitchen fire) in addition to a fire of class a (general fire) and a fire of class B (oil fire).

The permeable fire extinguishing agent composition according to the present invention exerts a strong fire extinguishing ability by generating hydrogen to absorb oxygen and continuously generating strong bubbles to flames to block oxygen of a flame source when extinguishing a fire. Moreover, the fire-extinguishing agent is converted into nitrogen, phosphoric acid and potassium after fire extinguishing, so that the fire-extinguishing agent is harmless to human bodies, and is environment-friendly because the fire-extinguishing agent does not pollute soil.

Hereinafter, the present invention will be described in more detail by examples, comparative examples and experimental examples. However, the following examples are intended to illustrate the present invention, and the scope of the present invention is not limited thereto.

[ example 1]

10.9 weight percent of potassium bicarbonate, 4.0 weight percent of urea, 4.0 weight percent of ethylene glycol, 2 weight percent of lauramidopropyl betaine, 0.1 weight percent of perfluoroalkyl betaine, 0.14 weight percent of ethanol, 0.03 weight percent of methyl ethyl ketone and 0.03 weight percent of isopropanol were dissolved in 78.9 weight percent of 21 ℃ water at a stirring speed of 180rpm to prepare a total of 340ml of the osmotic fire-extinguishing agent composition.

[ example 2]

A total of 340ml of an osmotic fire-fighting pharmaceutical composition was prepared by dissolving 5 weight percent of potassium bicarbonate, 4.0 weight percent of urea, 4.0 weight percent of ethylene glycol, 3 weight percent of lauramidopropyl betaine, 0.5 weight percent of perfluoroalkyl betaine, 0.7 weight percent of ethanol, 0.15 weight percent of methyl ethyl ketone, and 0.15 weight percent of isopropyl alcohol in 82.5 weight percent of 21 ℃ water at a stirring speed of 180 rpm.

Comparative example 1

A total of 340ml of an osmotic fire-fighting pharmaceutical composition was prepared by dissolving 12.0 weight percent potassium bicarbonate, 2.0 weight percent urea, 3.0 weight percent ethylene glycol, 0.1 weight percent cocamidopropyl betaine in 82.9 weight percent of 21 c water at a stirring rate of 180 rpm.

Comparative example 2

A total of 340ml of an osmotic fire-fighting pharmaceutical composition was prepared by dissolving 5 weight percent potassium bicarbonate, 5.0 weight percent urea, 3.0 weight percent ethylene glycol, 3.0 weight percent cocamidopropyl betaine in 84.0 weight percent of 21℃ water at a stirring rate of 180 rpm.

Comparative example 3

A total of 340ml of an osmotic fire-fighting pharmaceutical composition was prepared by dissolving 12.0 weight percent potassium bicarbonate, 8.0 weight percent urea, 2.0 weight percent ethylene glycol, 1.0 weight percent lauramidopropyl betaine in 77.0 weight percent water at 21 ℃ with a stirring speed of 180 rpm.

Comparative example 4

A total of 340ml of an osmotic fire-fighting pharmaceutical composition was prepared by dissolving 10.0 weight percent of potassium bicarbonate, 4.0 weight percent of quaternary ammonium salt, 4.0 weight percent of ethylene glycol, and 2.0 weight percent of lauramidopropyl betaine in 80.0 weight percent of water at 21 ℃ with a stirring speed of 180 rpm.

Comparative example 5

1.0 weight percent potassium bicarbonate, 2.0 weight percent sodium chloride, 8.0 weight percent ethylene glycol, 4.0 weight percent lauramidopropyl betaine, 1.0 weight percent ethyl cellulose were dissolved in 84.0 weight percent water at 21 ℃ with a stirring speed of 180rpm to prepare a total of 340ml of an osmotic fire-fighting pharmaceutical composition.

Comparative example 6

10.0 weight percent of potassium bicarbonate, 4.0 weight percent of sodium chloride, 2.0 weight percent of ethylene glycol, 2.0 weight percent of lauramidopropyl betaine, 0.1 weight percent of perfluoroalkyl betaine, 0.14 weight percent of ethanol, 0.03 weight percent of methyl ethyl ketone and 0.03 weight percent of isopropanol were dissolved in 76.7 weight percent of 21 ℃ water at a stirring speed of 180rpm to prepare a total of 340ml of the osmotic fire extinguishing agent composition.

Comparative example 7

A total of 340ml of an osmotic fire-extinguishing chemical composition was prepared by dissolving 10.0 weight percent of potassium bicarbonate, 4.0 weight percent of sodium chloride, 4.0 weight percent of ethylene glycol, 0.1 weight percent of perfluoroalkylbetaine, 0.14 weight percent of ethanol, 0.03 weight percent of methyl ethyl ketone, and 0.03 weight percent of isopropyl alcohol in 81.7 weight percent of 21 ℃ water at a stirring speed of 180 rpm.

Comparative example 8

A total of 340ml of an osmotic fire-fighting pharmaceutical composition was prepared by dissolving 10.0 weight percent potassium bicarbonate, 4.0 weight percent sodium chloride, 4.0 weight percent ethylene glycol, and 2.0 weight percent lauramidopropyl betaine in 80.0 weight percent water at 21 ℃ with a stirring speed of 180 rpm.

Comparative example 9

4.0 weight percent of potassium bicarbonate, 4.0 weight percent of sodium chloride, 4.0 weight percent of ethylene glycol, 2.0 weight percent of lauramidopropyl betaine, 0.1 weight percent of perfluoroalkyl betaine, 0.14 weight percent of ethanol, 0.03 weight percent of methyl ethyl ketone and 0.03 weight percent of isopropanol were dissolved in 85.7 weight percent of 21 ℃ water at a stirring speed of 180rpm to prepare a total of 340ml of the osmotic fire extinguishing agent composition.

[ Experimental example 1] fire extinguishing test

Fire extinguishing tests were conducted using aerosol fire extinguishing tools. The aerosol fire-extinguishing tool is characterized in that the fire-extinguishing capacity unit specified in fire-extinguisher form approval and product inspection technical standard which is one of fire-fighting approval standards is less than 1, the weight of fire-extinguishing agent is less than 0.7kg, and the filling pressure of a fire-extinguishing agent container filled in the fire-extinguishing tool is 0.8MPa (8 kg/cm) at the temperature of (35 +/-0.5) ° C²) The following fire extinguishing tool. "fire extinguishing tool" refers to a fire extinguishing apparatus filled with a fire extinguishing agent and used to extinguish a fire.

The compositions of examples 1 to 2 and comparative examples 1 to 9 were mixed at 8kg/cm²The samples filled in the cans were classified into the following 5 types after being fixed at high temperature (35 ℃ C.) and low temperature (-5 ℃ C.), and the result values after conducting 2 fire extinguishing tests for each type are shown in the following Table 1.

1. Fire test of trash can

A cylinder having an inner diameter of 2.8cm was placed in the center of an iron cylindrical trash can having an inner diameter of 28cm and a height of 30cm, and 40 newspapers (about 240g in weight) (1/4 having a length of about 54cm, a width of about 79cm and a size of about plain paper) were kneaded and stacked uniformly. 0.3g of absorbent cotton was dipped in methanol suitable for KSM1658 (methanol), placed in a cylinder to ignite, and then immediately pulled out of the cylinder to burn for 3 minutes before fire extinguishing test was carried out, in which case there should be no after flame and there should be no re-burning within 2 minutes. If the standard is met, the fire is judged to be extinguished.

2. Fire of oil stove

An iron box with the width of 40cm, the length of 20cm and the height of 50cm is arranged at the center of a fire model with the width of 70cm, the length of 40cm and the height of 2cm, 1L lamp oil suitable for KSM2613 (lamp oil) No. 1 and 100mL n-heptane are added into the fire model, and a fire extinguishing test is carried out after the lamp oil and the heptane are ignited and combusted for 1 minute, in this case, after flame is not remained, and the lamp oil and the heptane are not combusted again within 1 minute. If the standard is met, the fire is judged to be extinguished.

3. Curtain fire

A thick curtain having a width of 190cm and a height of 175cm (100% acryl, which weighs about 1.35 kg after standing at a temperature of (50 ± 2) ° c for 24 hours) was set such that the top of the curtain was 50cm below the ceiling in a state where the center portion was tied, and a fire model having a width of 50cm, a length of 10cm and a height of 5cm was charged with 500mL of water and 25mL of n-heptane, ignited and burned for 50 seconds, and then a fire extinguishing test was performed, in which case, there was no afterflame and re-burning was not performed within 2 minutes. If the standard is met, the fire is judged to be extinguished.

4. Seat cushion fire hazard

After burning a square polyurethane foam (weighing about 1.3 kg) having a side length of 100cm and a thickness of 10cm, which had a central portion thereof ignited with hexamethylenetetramine (weighing 0.15g, diameter 6.4mm and thickness 4.3mm), for 90 seconds, a fire extinguishing test was conducted, in which case there should be no after flame and re-burning should not be conducted within 2 minutes. If the standard is met, the fire is judged to be extinguished.

5. Fire hazard of frying pan

700mL of soybean oil (ignition point in the range of 360 ℃ or more to 370 ℃) was put into a fryer having a diameter of 30cm and a height of 5cm, and after heating to 400 ℃ with a gas range, the gas range was turned off and a fire extinguishing test was conducted, in which case there should be no after flame and re-combustion should not occur within 1 minute. If the standard is met, the fire is judged to be extinguished.

[ Experimental example 2] measurement of pH

The pH values of the compositions of examples 1 to 2 and comparative examples 1 to 9 were measured, and the results are shown in table 1 below.

[ Experimental example 3] measurement of surface tension

The surface tensions of the compositions of examples 1 to 2 and comparative examples 1 to 9 were measured, and the results are shown in table 1 below.

[ Experimental example 4] measurement of freezing Point

The compositions of examples 1 to 2 and comparative examples 1 to 9 were observed at a temperature of-5 ℃ for 240 hours and measured whether or not to be solidified, and the results are shown in the following table 1.

Experimental example 5 measurement solution separation

The compositions of examples 1 to 2 and comparative examples 1 to 9 were observed at a temperature of 80 ℃ for 240 hours and measured whether or not a solution separation phenomenon occurred, and the results are shown in the following table 1. Among them, a precipitate or turbidity was generated, and it was also judged that the solution was separated.

[ Table 1]

As shown in table 1 above, it was confirmed that the fire-extinguishing agent of example 1 has excellent fire-extinguishing performance even in general fires, oil fires, and kitchen fires. In example 2, it was confirmed that the fire-extinguishing composition has excellent fire-extinguishing performance even in general fires, oil fires, and kitchen fires.

In the case of comparative example 1, the fluorine-free surfactant contained a small amount of the amphoteric surfactant, and thus the surface tension was poor, and the fire was not extinguished in the oil furnace fire model and the fryer fire model. And the surface tension is 33dyne/cm²And not less than 33dyne/cm²The standard of the permeable fire extinguishing agent.

In the case of comparative example 2, the solution separation phenomenon was severe at a high temperature of 80 ℃ and the surface tension was 36dyne/cm because it did not contain a fluorine-based surfactant²And the standard of the permeable fire extinguishing agent is not met.

In the case of comparative example 3, since the composition contained a small amount of the pour point depressant and a large amount of urea, cooling action of urea occurred and ice was formed at-5 ℃. Further, since the fire extinguishing agent contains no fluorine-containing surfactant and a small amount of amphoteric surfactant, the fire was not extinguished in the fryer fire model, and the surface tension was 33dyne/cm²And the standard of the permeable fire extinguishing agent is not met.

In the case of comparative example 4, the composition contained the quaternary ammonium salt as the cationic surfactant instead of the fluorine-containing surfactant, and thus failed to extinguish a fire in the oil-stove fire model or the fryer fire model, and the solution separation phenomenon occurred because urea was not contained.

In the case of comparative example 5, urea was not present in the composition, the amount of potassium bicarbonate was very small, and the composition contained no fluorine-based surfactant, and thus the fire was not extinguished in the oil furnace fire model and was barely extinguished in the fryer fire model. Also, since sodium chloride and ethyl cellulose are contained instead of urea, a solution separation phenomenon occurs.

In the case of comparative example 6, it was confirmed that when the amount of ethylene glycol was small, ice was formed at-5 ℃.

In the case of comparative example 7, which contained no amphoteric surfactant, the foam forming ability was poor, the extinguishing power was decreased, and thus fire could not be extinguished in the oil furnace fire model and the fryer fire model, and the solution separation phenomenon occurred.

In the case of comparative example 8, it was confirmed that the fire was not extinguished in the oil-boiler fire model and was barely extinguished in the fryer fire model, without containing the fluorine-containing surfactant and the additive. Further, the surface tension was high, and the foam was easily broken, and the surface tension was measured to be 36dyne/cm²And the standard of the permeable fire extinguishing agent is not met.

In the case of comparative example 9, since a small amount of metal carbonate was contained, the amount of foam formation was small, and the amount of hydrogen generation was small, it was confirmed that oxygen was not blocked, and fire was not extinguished in the oil furnace fire model and the fryer fire model.

While certain features of the invention have been described in detail above, it will be apparent to those skilled in the art that this detailed description is merely a preferred example, and that the scope of the invention is not limited thereto. Accordingly, the substantial scope of the present invention will be defined by the appended claims and equivalents thereof.